Display frame



FIG. 1 is a top, front, right side perspective view of a display frame showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a plan view thereof shown in a flat and unassembled position. 

The ornamental design for a display frame, as shown and described. 